{"product_id":"raypak-heater-bulb-sensor-well-007211f","title":"Raypak Heater Bulb Sensor Well | 007211F","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Raypak 007211F is a genuine OEM stainless steel bulb sensor well — also known as a thermowell — designed to protect the temperature sensing bulb within the heat exchanger on a wide range of Raypak pool and spa heater models. The sensor well acts as a protective sleeve between the temperature sensor and the pool water flowing through the heat exchanger, shielding the sensor from direct water contact and pressure while still allowing accurate temperature measurement for precise heater operation. Measuring 3-3\/8 inches in length with a 15\/32-inch inside diameter and a flared 9\/16-inch outside diameter at the open end, this single-piece stainless steel thermowell is engineered for corrosion resistance and long-term thermal durability in demanding pool heater environments. Compatible with Raypak heater models 53, 53A, 53B, 55A, 151, 153, 153A, 155A, 181, 183A, 261, 263A, 331, 333A, 401, and 403A. Formerly listed under Raypak part number 350336.\u003c\/p\u003e\n\u003ch3 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003eHighlights\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenuine Raypak OEM Stainless Steel Thermowell:\u003c\/strong\u003e Factory-authorized 007211F sensor well manufactured from a single piece of stainless steel to exact Raypak specifications, ensuring a precise fit and dependable corrosion resistance throughout the service life of compatible heater models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtects Temperature Sensor from Direct Water Contact:\u003c\/strong\u003e The sensor well creates a protective barrier between the temperature sensing bulb and pool or spa water flowing through the heat exchanger, shielding the sensor from water pressure and chemical exposure while maintaining accurate temperature readings for proper heater control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise OEM Dimensions for a Secure Fit:\u003c\/strong\u003e Measures 3-3\/8 inches in length with a 15\/32-inch inside diameter and a flared 9\/16-inch outside diameter at the open end, matching factory dimensions exactly for a secure, properly seated installation in the heat exchanger.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Raypak Model Compatibility:\u003c\/strong\u003e Fits a wide range of Raypak pool and spa heater models spanning the full legacy lineup — including models 53, 53A, 53B, 55A, 151, 153, 155A, 181, 183A, 261, 263A, 331, 333A, 401, and 403A — making it one of the most versatile thermowell replacements in the Raypak parts catalog.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces Legacy Part Number 350336:\u003c\/strong\u003e The 007211F is the current Raypak OEM part number replacing the older 350336 designation — ensuring customers searching by either number can confidently identify this as the correct replacement for their compatible heater model.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eCompatible with most Raypak heaters, please refer to your owners manual to confirm compatibility\u003c\/p\u003e","brand":"Raypak","offers":[{"title":"Default Title","offer_id":51715994190112,"sku":"007211F","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/3326\/9536\/files\/dpmRaypakHeaterBulbSensorWell007211F_2.jpg?v=1786053236","url":"https:\/\/discountpoolmart.com\/products\/raypak-heater-bulb-sensor-well-007211f","provider":"Discount Pool Mart","version":"1.0","type":"link"}